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  • 16-06-2021
  • Mathematics
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Which equation results from taking the square root of both sides of (x – 9)2 = 81?

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bhadelsimron19
bhadelsimron19 bhadelsimron19
  • 16-06-2021

Answer:

equation is 2x - 18 = 81

Step-by-step explanation:

(x - 9)2 = 81

(2x - 18) = 81

taking the square root of both sides

[tex](\sqrt{2x - 18} ) = \sqrt{81}[/tex]

[tex](\sqrt{2x - 18})^2 = 81[/tex]

2x - 18 = 81

2x = 81 + 18

2x = 99

x = 99/2

x = 49.5

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